Question
In: Statistics and Probability
2) A researcher is interested in studying whether or not student athletes drink more alcohol than...
2) A researcher is interested in studying whether or not student athletes drink more alcohol than the college students in general. The average number of drinks per week a college student drinks is 6.94 drinks (SD = 3.4). What we conclude if we selected a sample of 40 student athletes and they drank an average of 8.25 drinks? What does the distribution of sample means for this scenario consist of? Explain your decision using the distribution of sample means in your explanation
Solutions
Expert Solution
This is a Z sample test for one population mean.
Here we have to test that student-athletes drink more alcohol than the college students.
I.e the hypothesised mean under test is 6.94 and population
standard deviation is 
We will consider and assume that the significance level is 0.05
Hence we have evidence to conclude that student-athletes drink more alcohol than the college students.
We have assumed that the sample distribution is normally
distributed with mean 8.26 drinks and standard error = 
orchestra answered 2 years agoRelated Solutions
3) A researcher is interested in studying whether or not baseball players are more superstitious than...
3) A researcher is interested in studying whether or not
baseball players are more superstitious than people in general. The
population has an average score of 4.3 (SD = 1.9) on the
superstitious scale. A sample of 36 baseball players scored an
average of 4.7 on the superstitious scale. What does the
distribution of sample means for this scenario consist of? What
would we conclude and explain your decision using the distribution
of sample means in your explanation.
- The Athlete compensation student presentation asked if compensating student athletes for more than room and...
- The Athlete compensation student presentation asked if
compensating student athletes for more than room and board is
ethical. What is your personal stance on this issue? Provide a
thorough explanation.
We are interested in studying whether Private Colleges costs at least $15,000 more than Public Colleges....
We are interested in studying whether Private Colleges costs at
least $15,000 more than Public Colleges. This is to run an
advertisement campaign to promote more high school students to
consider public colleges to save at least $15,000 in tuition a
year. See the excel file CollegeCosts for the random samples
showing the annual cost of attending private and public colleges.
Data are in thousands of dollars.
What is the p-value for this hypothesis testing. ROUND TO 4
DECIMAL PLACES....
A researcher is interested in studying whether a new stretching technique affects the time needed to...
A researcher is interested in studying whether a new stretching
technique affects the time needed to complete a certain running
exercise. The times of 4 randomly selected participants were
measured before the new stretching technique was used, and then the
times for the same participants were measures after the new
technique was used. The resulting data is
before new technique
58
70
61
63
after new technique
65
53
58
52
Is there a significant difference between the mean times...
Scenario: Imagine you are a researcher who is interested in studying whether sleep deprivation leads to...
Scenario: Imagine you are a researcher who is interested in
studying whether sleep deprivation leads to increased reaction
times (i.e., being slower) when driving. You randomly select a
sample of 30 licensed drivers. Fifteen participants are randomly
assigned to get 5 hours of sleep for three consecutive nights. The
other 15 participants are randomly assigned to get 8 hours of sleep
for three consecutive nights. For the purposes of this Assignment,
assume that all participants sleep exactly the required amounts....
Question text A researcher is interested in whether the attractiveness of the instructor influences student attendance...
Question text
A researcher is interested in whether the attractiveness of the
instructor influences student attendance at the statistics lab. The
independent variable is the attractiveness of the lab instructor
(assuming three instructors are of the same gender and are equally
competent). The dependent variable is the number of times a student
attends statistics lab during one semester. There are three groups
with data:
Group 1(unattractive instructor): 20, 13, 9, 22, 21
Group 2: moderately attractive instructor: 24, 27, 25,...
A researcher is interested in whether the phonics method of teaching reading is more or less...
A researcher is interested in whether the phonics method of
teaching reading is more or less effective than the sight method,
depending on what grade the child is in. Twenty children were
randomly selected from each of three grades: kindergarten (K),
first grade (1), and second grade. Achievement was measured in
terms of reading comprehension where higher scores indicate better
comprehension. Within each grade, 10 children were assigned to each
of two methods of teaching reading - phonics or sight....
A researcher is interested in whether the phonics method of teaching reading is more or less...
A researcher is interested in whether the phonics method of
teaching reading is more or less effective than the sight method,
depending on what grade the child is in. Twenty children were
randomly selected from each of three grades: kindergarten (K),
first grade (1), and second grade. Achievement was measured in
terms of reading comprehension where higher scores indicate better
comprehension. Within each grade, 10 children were assigned to each
of two methods of teaching reading - phonics or sight....
A researcher is interested in determining if the more than two thirds of students would support...
A researcher is interested in determining if the more than two
thirds of students would support making the Tuesday before
Thanksgiving a holiday. The researcher asks 1,000 random selected
students if they would support making the Tuesday before
Thanksgiving a holiday. Seven hundred students said that they would
support the extra holiday.
Define the parameter.
a. p = the population proportion of UF students who would
support making the Tuesday before Thanksgiving break a holiday.
b. phat = the sample...
A researcher is interested in studying the effect that the amount of fat in the diet...
A researcher is interested in studying the effect that the
amount of fat in the diet and amount of exercise has on the mental
acuity of middle-aged women. The researcher used three different
treatment levels for the diet and two levels for the exercise. The
results of the acuity test for the subjects in the different
treatment levels are shown below.
Diet
Exercise
<30% fat
30% - 60% fat
>60% fat
<60 minutes
4
3
2
4
1
2
2...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Explain how biology, culture, and their interaction shape sex differences.
- Write a program that computes the tax and tip on a restaurant bill for a patron...
- clear all close all % %*******Parameter Settings******** %********************************* Fs=8192; %Sampling frequency (MATLAB's default) Ts=1/Fs; %Sampling time...
- Name a business that you believe has experienced declining costs attributable to computerization. Were variable costs...
- With C++, 1. Assume we use two linked lists that represent Set A and Set B...
- A beam of light shines on an equilateral glass prism at an angle of 45∘ to...
- This is an intro to python question. #Write a function called search_for_string() that takes two #parameters,...
ADVERTISEMENT